Global Patent Index - EP 1709666 A2

EP 1709666 A2 20061011 - HIGH-PRESSURE MERCURY VAPOR LAMP

Title (en)

HIGH-PRESSURE MERCURY VAPOR LAMP

Title (de)

HOCHDRUCK-QUECKSILBERDAMPFLAMPE

Title (fr)

LAMPE A VAPEUR DE MERCURE HAUTE PRESSION

Publication

EP 1709666 A2 20061011 (EN)

Application

EP 05702565 A 20050105

Priority

  • IB 2005050035 W 20050105
  • EP 04100110 A 20040115
  • EP 05702565 A 20050105

Abstract (en)

[origin: WO2005071711A2] The invention relates to a high-pressure mercury vapor lamp suitable for sterilization purposes. The high-pressure mercury vapor lamp according to the invention is remarkable in that germanium and oxygen are added in small quantities to the mercury and/or the mercury halides. The addition of germanium monoxide furthermore surprisingly increases the GAC efficiency (GAC: short for Germicidal Action Curve) of a high-pressure mercury vapor lamp, because germanium monoxide emits a strong molecular band system in the range from 250 to 280 nm. The germicidal action of the high-pressure mercury vapor lamp according to the invention is thus increased with respect to that of conventional high­pressure mercury vapor lamps. This is apparent from the fact that the GAC-weighted radiant flux is greater than before in the high-pressure mercury vapor lamp according to the invention.

IPC 8 full level

H01J 61/12 (2006.01); H01J 61/20 (2006.01); H01J 61/82 (2006.01); H01J 65/04 (2006.01)

CPC (source: EP US)

H01J 61/20 (2013.01 - EP US); H01J 61/822 (2013.01 - EP US); H01J 65/042 (2013.01 - EP US)

Citation (search report)

See references of WO 2005071711A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005071711 A2 20050804; WO 2005071711 A3 20051027; CN 100583379 C 20100120; CN 1910730 A 20070207; EP 1709666 A2 20061011; JP 2007518236 A 20070705; US 2009184644 A1 20090723; US 7733027 B2 20100608

DOCDB simple family (application)

IB 2005050035 W 20050105; CN 200580002484 A 20050105; EP 05702565 A 20050105; JP 2006548497 A 20050105; US 58570805 A 20050105